Breifing:Window 7 Ultimate Full Activated version x86 / x64. is available in six different editions, but only Home Premium, Professional and Ultimate are widely available at retail. The other editions are focused at other markets, such as the developing world or enterprise use.[1] Each edition of Windows 7 includes all of the capabilities and features of the edition below it. All editions support the 32-bit (IA-32) processor architecture and all editions except Starter support the 64-bit (x86-64) processor architecture (64-bit installation media is not included in Home Basic edition, but can be obtained from Microsoft).softwareheart
According to Microsoft, the features for all editions of Windows 7 are stored on the machine, regardless of what edition is in use. Users who wish to upgrade to an edition of Windows 7 with more features can then use Windows Anytime Upgrade to purchase the upgrade, and unlock the features of those editions. Microsoft announced Windows 7 pricing information for some editions on June 25, 2009, and Windows Anytime Upgrade and Family Pack pricing on July 31, 2009

Windows 7 Ultimate contains the same features as Windows 7 Enterprise, but unlike the Enterprise edition, it is available to home users on an individual license basis. Windows 7 Home Premium and Windows 7 Professional users are able to upgrade to Windows 7 Ultimate for a fee using Windows Anytime Upgrade if they wish to do so. Unlike Windows Vista Ultimate, the Windows 7 Enterprise edition does not include the Windows Ultimate Extras feature or any exclusive features

Those of you who are purchasing the Ultimate edition of Windows 7 will get a few extra features too. There's BitLocker encryption for drives if you want to protect particular content from prying eyes. This offers AES encryption algorithm in CBC mode with a 128 bit key, combined with the Elephant diffuser for additional disk encryption specific security not provided by AES. If you're not sure what that means, then it basically means "you're not breaking into this one".

In fact, it's fair to say that if your device doesn't work in Windows 7 or Vista now, then the blame can only be pinned on the manufacturer - they've had nearly four years to get things working. The only issues we faced were linked to running a 64-bit operating system which, while supported pretty well, didn't have quite the same catalogue of drivers as the 32-bit edition.